Stop motion for textile apparatus



Dec. 12, 1944. w. J. SCOTT 2,364,824

STOP MOTION FOR TEXTILE APPARATUS Filed Nov. 3, 194a 2 SheetsSheet 1 INVENTOR T Vb'Z/e/ f (900/2 Dec. 12, 1944-. w 1 sc 2,364,824

STOP MOTION FOR TEXTILE APPARATUS Filed Nov. 5, 194-3 2 Sheets-Sheet 2 li 5 I 15 277 6'7 44W 67 wa/reryg gff ATTORNEYS Patented Dec. 12, 1944 2,364,824; a STOFMOTIONFOR TEXTILETAPPARATUSi W alterili Scott, Woonsooketl-R. 1.: Application November 3, 1943,sSerialIN'.o.5D8;819I

' (on av -s1 This A invention 4 relates to a stop motion fora textile apparatus, more.particularly for a drawing frame, and, hastcertain. improvedi features with relationtc the stop motionush'own P.-t'ent12,',0'86,096 gran-ted Julyfi; 19371 h The stop motionillustrated the above-mentionedpatent,.makesnecessary. that all" of the ends of .yarn oi'tlie drawing frame be operating at one time inasmuch as should'one ofth'enyarn ends cease to. function the. stop motion would causethe machineto stop, and if the, machine is to be operatedJwithout one yarn end'itr'isjnegessary; to make. atemporary', arrangement for the control ofthe stop, motion. associated-with this inoperative yarn: end. Also the"arrarigement shown in: the above mentioned". patent requires the use ofan upper bearing; for the spindle of 'the packaging means asa supp'ort'for the mounting of" the stop motion device whichIluse and! on ligliterweight'ma chines designed for li'ghteriwork n'o'suchuppeibearing for the packagingmeans'is provided? One of the olojt-zcts 'of" this invention is to pro vide a stop'motion'd'evi'ce' utilizing a; circuitcontrolling means which" may optionally 'be made non' operative*by'amanual controlin order that the frame-mayfcontinueto operate with "onez end down:

Another object of this invention is tomakethe controls foreaoh yarn end completeli independ ent that anyone-or more-maybe seleetedat'wiil.

Another object of this invention is to provide such a control which will be si-mple of operation and iriexpensive to'manufacture;

Another "object" of the-invention i to arrange (t-mounting for the deviee'from apart ofthe frame which will be existent wh'ether thef'r'ame loafer drawing heavy or light Work.-

A morer'specifi c-l object of the invention isto provide a: bracket-which may be secured to the bearing: for-"the; upper: delivery roll and which wil'l su'spendia;control-device"in a positionwhere it'tmay b'etoperablei for 'the yarn ends at either sideithereof. l

Arrotherobject' of the rinvention is to provide a simple mounting 1 and: one inexpensive to J manue facture.

With'theser and 1 other 'objectsein View, the? ventioni consists:- of certain novel faturesiof con;- struction, a's will 'bei'moreifll'l'ly described and p'ar-' ticu-larly pointed out in tliezappentied claims;

In theaccompanyingdrawings:

Fig; 1 is: a: diagrammatic: View looking at: the end-1 of the-draft rol-ls and-showing" the travel. of the-yarn from =the-drawiingero1i to the: packaging device and; illustrating the relative 'position oi the-stop motiomdevice;

Figt'Z lSvEII? endrelevation of theistop motioni de,-; vice-alone; r I

Fig. 3 is=a front." elevation 0t the-stop, motion devicealone; r v

Fig t: 44 is: arseetiom-als' view l on substanhiallyy line dl ofiEigtfi; a

Rig. 5 issaesectionalavievv omline: il -5' of iFigalp; I Fign 6.-is sa fragmentali'view loolimgq from tlie frontv of. thecframettoward therpackagingemeans and draft rolls andillilstrating aipluraJityiofIendS 7 being, draftedand. the. relationship of the stop motion dvioescwitli reference 4 to the plurality" of ends;

Fig; Tis arsectionarview on l'irie? I -T ofFig; 3: Fig; 8-is a wiringdiagram illustrating: the -circuitimeans andtheisliipperlever forth'e. control oithedraftingjrame: Y 1

proceeding withthi's invention 1* provida bracket whicli'mayattaoh 'to' thebearinggfOrtlie upper delivery "roll-s andwliicnmay'supporti an electrical circuit closing 'device-soitl' ratarms which project oppositelymaybeen-gaged floy adjacent yameirds: I"provide arms'rwhich"are-toabeeeng a'ge'd by theWarn endswhic h' willfbe so post timed a-s' to gravitatetooclose an electric? circuit tostop triedra wing frame:-

also arrangeaa means for: kilockingrtlieemovement of: each arm by gravityso that it cannotclose? thei circuit: Tifusyif one warn-'- endrut-i-s out-on breaksrather thanpiece-tliismplimmediatelyflmray permit the machine to operate by merel y manuallyithrowing this blookingrlever that -thesotlrer: yarn end may continue: and: the drawings framzeefimctiom With reference: touthe: drawings; lnrd'esignates aosuitaabieeswpportiupomwhichistandardscI 11s are mounted tmprovide :bearingsa .ZiIfOIZTtI'IB'EShZZEtS i 3 which extend' along the: drawing; frame}. and is providediat suitabiti-ntervals:withaenlarged tionsol:4nservingg;astslower delivery rollsreaoh'havingzffutedtsurfaices zlisl This shaftrl-S' ii'sz'drivenfin at usual ;manner: from :cmewendizof; theeframe: 1

In; alternate spaces-between? thelower delivery rolis: I14? brackets I Bcare .zprovi-dedr; for. supporting bearingss H with inclined isusrfa'cesctoxberengaged by endmortionsaofitandemsshafts l-B upon:;each 01 which :thererare: mow rtedaai nail: of'iupper' IiVEI'y IOII SiN; Thezuppertideliverw rolls lat azxe" arrangedl in: pairs uppm the shaft? to: all: be removed asaiunitt.

Theryarmz flnwhich ris:tocbedrasftedextends from wsunplyniackagerandipasses ethroughithe group of feed :PUHSQ 24 and convexonfrollsxlzwto the deli-very rolls 1:4 andil Siandthencetoth packagii i :engaging arm 31.

on a spindle 26 the aged on the spool. The stop motion device comprises a bracket arm 30 provided with a slot 3| which may be bolted as at 32 to the bearings l1 for the upper delivery draft rolls. -At the opposite I end of the arm 39 the bracket; extends laterally providing'portions 33 upon which blocks 34 are mounted by means of the cap screws 35. Each of the blocks are provided with openings 35 therethrough for the rockable mounting of a yarn-. 7

This arm 31 is pivotally mounted by pointed threaded studs 38 and 39' 1 (see Fig. which may be adjusted and held in adjusted position by the locking nuts 40. The

thence by lead 61 to the other side of the power supply 65.

I claim: .2

1. In a drawing frame, delivery draft rolls, packaging means for each end of the yarn, means including an electric circuit for stopping the frame upon energizing the circuit, a plurality of circuit controlling devices one positioned to be controlled by the travel of each yarn from its draft rolls to its packaging means, said devices each including a support carrying a plurality of movable arms spaced from each other, one extending on one side of said support in the path of movement of an adjacent yarn end, and another on the opposite side of said support andin the path of an adjacent yarn end, a contact for each of saidarms, a means for connecting said pointed ends of these vmembers engage similarly conical recesses in the arms 31 for the provision of an easily rockable bearing. Theinclination of the pivot 38 and 39 when the device is in set PO?- sition is such that the arm 31 will tend to move toward a contact post 4| (see Figs. 5 and '7) into I engagement with the same. This contactpost 4| 1 is adjustably mounted in a bar 42 which is secured to the blocks 34 by the'bolt 43 passing through the insulating bushing 44 so that the bar 42 and contact 4| carried thereby are insulated I from the block which pivotally mounts the arm 1 31. This bar 42 will be the live side of the circuit while the device itself will be the ground or other side of the circuit.

' The arm 31 will be so positioned that when I the yarn 20 extends overland in contact with this arm as shown in Fig. 1 or in Fig. '7 the yarn will'hold this arm away from contact post 4| 1 However, I should the yarn'break as shown at the left of j and thus the circuit will be open.

Fig. 7 then the arm 31 will move into engagement with the contact post 4| and complete the circuit. The device is so'hung' that the movement of the arm will be by gravity.

I 4 If it is desired to prevent the arm from move. ment into'engagement with the contactpost, a lever 45 (see Figs. 2 and 4) which is pivotally mounted bymeans of a screw45 on the inneredge of each of the blocks 34 and which has a lower be swung about its pivot so as '1 portion 41 may to engage the inner end portion of the arm 31 and block movement of this arm so that it cannot move into engagement with the contact post.

to complete the circuit.

In the wiring arrangement for this stop motion device the shipper bar is designated .(see;

Fig. 8) which controls a belt fork 5|, a shipper lever 52 is urged by'spring53 in one direction to stop the .machine, It has a portion 54 which engages a latch 55 to hold it in operating position.

shown as several in this diagramandas shown in Fig.6. If one. of the arms is moved into en gagement with contactpost 4| the circuit would be closed. A bus bar 6| extends the length of the machine and the individual bars42 are connected to the bus bar through a plurality of wires 63. The live side of the circuit is connected to the power supply 65 by lead 66. The side of the circuit orground from the arms 31 is designated by the lead line 64 to the shipper 1ever-52 and through the latch which may become disconnected to the solenoids 59 and 60 and The latch is controlled by other latch mechanism56, 51 and 58 through solenoids 59; and 69 which are energized when the-circuit closes. The contact posts 4| and arms 31 are contacts and a common means for connecting said arms in said circuit, means for movably mounting each arm to move into engagement with its contact, said devices each being so positioned'that the yarn engages said arms and holds the arm spaced from saidcontact whereby upon breaking the yarn said arm moves to engage said contact and closes said circuit, and independently operable means to block movement of each arm into circuit closing position whereby the frame may operate after one of a plurality of yarns breaks.

2. In aedrawing frame lower delivery draft rolls having fluted surfaces at intervals for a plurality of yarn ends, bearings between fluted surfaces for a pair of upper delivery draft rolls, a pair of upper delivery draft rolls having a shaft the end portions of which engage said bearings, means including an electric circuit for stopping the frame upon energizing the circuit, a device operable by the yarn ends for controlling said circuit,

means including. an electric circuit for stopping the frame upon energizing the circuit, a device for controlling said circuit, including a pair of arms, with the arms extending in opposite direction from each other and in the path of movement of an adjacent yarn end to be engaged thereby and a bracket secured to one of said bearings for the upper deliverydraft rolls for mounting said device in position.

lpIn a drawing frame, lower delivery draft rolls having fluted surfaces at intervals for a plurality of yarn ends, bearings for a pair of upper delivery draft rolls in spaces between alternate fluted surfaces, a unit including a pair of upper delivery draft rolls anda shaftthe end portions of which engage two of said bearings, means including an electric circuit'for stopping the frame upon energizing the circuit, a device for controlling said circuit including a pair of arms, with the arms extending in opposite direction from each other and in the'pathof moveincluding a pair of arms, with the arms extend- I ing in opposite directions to be engaged by adjacent yarn ends, and means for mounting said device from one of said bearings for the upper 5 delivery draft rolls.

WALTER J. SCO'I'I'. 

